摘要点阵射频通过阵列式排布电极或微针发射的射频产生电流，点阵模式加热真皮层，对表皮损伤很小，热损伤后的修复过程涉及多种热休克蛋白、基质金属蛋白酶、细胞因子等的参与，可刺激胶原和弹力纤维增生，因此用于皱纹、松弛、痤疮瘢痕等皮肤问题的治疗。研究证明，点阵射频技术是一种安全有效的美容手段，可以紧肤、除皱、改善肤质，可显著改善萎缩性痤疮瘢痕，并可改善炎症性痤疮和炎症后红斑，不良反应较少，包括可耐受的疼痛、一过性红斑、水肿及细小结痂，停工期很短，引起炎症后色素沉着的风险小，更适合深肤色人群。近几年，点阵射频更多地与激光等设备的联合应用，或辅助经皮给药，疗效显著，有很好的应用前景。

abstractsFractional radiofrequency(FRF)is an aesthetic technique that utilizes electric current emanating from electrode or microneedle arrays to heat the dermis in a fractional pattern, with only little damage to the epidermis. The recovery process following the heat damage involves multiple heat shock proteins, matrix metalloproteinases, cytokines, etc, which can stimulate the proliferation of collagen and elastic fibers in the dermis. It has been applied to treat wrinkles, skin laxity, acne scars and other aesthetic skin problems, and has proved to be a safe and effective cosmetic method for the improvement of atrophic acne scars, inflammatory acnes and postinflammatory erythema. It has few adverse effects, including tolerable pain, transient erythema, edema and mild crusting, so the downtime is short. FRF is more suitable for populations with dark complexions because of low risks of postinflammatory hyper?pigmentation. Recently, it has been used in combination with other devices such as lasers, or been used to assist transdermal drug delivery, and has shown remarkable therapeutic effects and favorable application prospects.